The present invention relates to arrangements of rope lights in lamps and pedestals, and packaging therefor.
Typically, a floor lamp must have a height sufficient to elevate a bulb in order to be effective in lighting a room. This height, together with the bulkiness of a lamp shade and a base require a bulky container for packaging the lamp and results in a high shipping and handling cost from the manufacturer to the retailer and in a high storage cost to the retailer. These costs of the product are ultimately passed onto the consumer. One prior art method for reducing the bulkiness of floor lamp packages has been to provide a floor lamp which is packaged in a disassembled state and which can be assembled by the consumer. By making the composite floor lamp package more compact, there is a savings in the shipping and handling cost. Prior art packaging methods for floor lamps include partitioning the lamp into sections and securing each individual section in form fitting packaging material such as styrofoam or cardboard. In such floor lamps, the support poles typically house a power cord for supplying AC power to the lamp, which once assembled, is hidden within the support pole. Power cords are flexible and sufficient slack is typically provided such that the lamp can be broken down, packaged and reassembled without damage to the cord housed within.
Conventional packaging methods are not appropriate for floor lamps that include an internal rope light because they do not take into account the differences in the stiffness and kink potential between a power cord and a rope light. For example, if a rope light is to behave within the support pole of an elongated lamp, there is a need to secure and protect the light rope core when the lamp is packaged to prevent damage to one or more of the components of the rope light. Such damage occurs, for example, from arcing the rope light between two disassembled support poles. The poles cannot be packaged close together or else the rope light core will arc past an acceptable arc length and can be damaged.
Secondly, once assembled, the rope light which typically has slack between pole segments to permit packaging in pieces results in free movements arrangements of the rope light within the support pole. This can result in a jumbled, unattractive appearance. Conventional rope light floor lamps have not taken into account the need to support the rope light under tension such that it is held taught within the assembled support pole, giving the rope light an approximately linear, column like appearance. The present invention solves these and other difficulties experienced with prior art rope lit floor lamps.
In accordance with one aspect of the invention, a floor lamp including a upper assembly for receiving a light bulb and a lamp shade, a base and at least one coupler having a through hole. A lower support body having a bottom opening and a top opening is located between the coupler and the base, and an upper support body having a bottom opening and a top opening is located between the upper assembly and the coupler. Both the upper and lower bodies each having a conduit for receiving a rope light which is disposed within the upper and lower support bodies and extends therebetween within the through hole of the at least one coupler. A first connector is adapted to connect the upper assembly to the top opening of upper body and a second connector adapted to connect the base to the bottom opening of the lower body.
In accordance with another aspect of the invention, the floor lamp can further include at least one gasket seated relative to the upper and lower bodies and to engage the a rope light, the gasket having an opening to receive the at least one rope light therethrough.
According to another aspect of the present invention, a floor lamp package is provided including a pre-form having one or more cavities sized to seat at least two lamp pole segments and a portion of a rope light extending from within and between the at least two lamp pole segments such that a minimum arc radius of the rope light is sufficiently large to prevent kinking in the rope light. A package surrounds the preform and the floor lamp package encloses a disassembled floor lamp including at least two lamp pole segments each having an axial channel therethrough and a rope light disposed within the axial channel and extending from at least one end of each of the lamp pole segments.
According to yet a further aspect of the invention, a rope light can be disposed about an outer perimeter of the base, the upper assembly, or both, such that an arc radius of the second rope light is greater than a radial distance to the outer perimeter, wherein both the arc radius and the radial distance are taken from a common point on the base, upper assembly, or both, as the case may be.
Further embodiments incorporating the above rope light arrangements are disclosed for use in conventional lamps, i.e., a desk lamp and a table.
These and further aspects, features and advantages of the present invention will become more apparent from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment of the present invention.
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The bottom assembly 26 includes a base 38 comprising a semi-circular port 48 for receiving a power cord 49. The base 38 preferably has a disk-shaped footprint or perimeter, an upwardly extending cylindrical upper portion 64 and a conical intermediate portion which is located between the disk-shaped footprint and the upwardly extending cylindrical portion 64. The base 38 can have a central vertical orifice which typically is co-axial with the main body 30 for receiving a rope light R. The upwardly extending projection 64, if provided, has an inner diameter which is substantially equal to the outer diameter of sectional tube 103 and is threaded 66 for receiving opposing outer threads 83 of a bottom end of tube 103 providing a tight fit. Alternatively, the main body can be provided on a base constructed without the projection 64. In either case, the base typically includes a weight (not shown) to impact stability to the lamp 25.
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Each exposed main body conductors 10 is positioned to extend external to core tube 220 and substantially parallel the entire length of the rope light R. The string of serial connected lights 30 is positioned to extend substantially the entire length of the rope light R and also positioned parallel to the plurality of main body conductors 10. Each of the plurality of lights 30 are preferably light emitting diode lamps and may also be provided in or driven so as to display a plurality of colors.
The rope light subassembly also includes a substantially solid, flexible, translucent, hollow sheath 200. The sheath 200 is preferably a plastic or polymeric material such as polyvinyl chloride (PVC). The serial connected string of lights 30 within core tube 220 is positioned within sheath 200. In the preferred embodiment, the sheath 200 and the core tube 220 are substantially transparent throughout the entire thickness of the rope light R. This advantageously provides enhanced illumination to the elongate rope light R.
The sheath 200 has a continuous annular shape in cross-section and is positioned to encase each of the plurality of exposed main body conductors 10 and the core tube 220 along substantially the entire length of the elongate rope light R so that conducting outer surfaces of the plurality of exposed main body conductors 10, the core tube 220 and the plurality of lights 30 are readily visible to a user through the sheath 200. Sheath 200 can advantageously include formed ridges, ribs, or rough regions which provide the outer sheath 200 with texture for ease of handling and gripping, added strength and enhancing visual appearance for many desired applications. Furthermore, sheath 200 is preferably formed from a single extruded piece of plastic.
Each of the two main body conductors 10 is made of a reflective metallic material. The combination of the illuminated lights 30, the reflective main body conductors 10 and substantially clear sheath 200 and core tube 220 advantageously enhance the illumination of the elongate rope light R.
According to a salient aspect of the present invention, each of the plurality of main body conductors 10 may further include a plurality of strands positioned in a twisted configuration. This twisted configuration also advantageously enhances illumination of each of the elongate rope light R.
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According to a preferred embodiment, the sectional tubes are aligned parallel to each other and spaced apart by a distance D such that an arc length A of rope light R does not drop below a predetermined threshold when the pole segments 101-103 are seated in the preform 310. When sectional tubes 102-103 are packaged parallel to each other too closely together such that the distance D between tubes is below a predetermined threshold spacing, the arc length A of rope light will be small which can lead to kinking of the rope light and possible damage to lights 30 and conductors 10 housed within the core tube 220 due to an undesirably low arc radius r. When the sectional tubes are aligned parallel to each other, arc radius r is defined as the radial distance to rope light R (the portion exposed from sectional tubes 102-103) when the tubes are in a disassembled state and is measured from a center point between two ends of the tubes. The distance D to be maintained by the preform 310 between tubes 102 and 103, the arc radius r and the arc length A of the rope light is a function of the material composition and properties of sheath 200. The more resilient a sheath 200, the greater it will be prone to kinking under smaller arc lengths A and radius' r and the greater the need to increase the distance D between adjacent tube section (e.g., tubes 102 and 103). Thus, a preform packaging material having one or more cavities 312 sized to seat at least two lamp pole segments are spaced from one another a distance D such that a minimum arc radius r experienced along an arc length A of the exposed rope light R exceeds a predetermined value for the particular rope light R being used, where the predetermined value of the arc radius r is at least the radius necessary to prevent kinking of sheath 200.
According to an alternative arrangement, section tubes 102 and 103 need not be packaged parallel to each other and can be arranged in any direction with respect to one another which can be necessary or sufficient for packaging. In such an arrangement, cavities 312 of packaging preform 310 may be arranged to converge or diverge. When tubes 102 and 103 sit in such cavities the arc length A and arc radius r of rope light R are functions of not only the material composition and properties of sheath 200, but also of the degree in which tubes 102 are 103 are angularly offset. Cavities 312 of preform 310 are arranged such that a minimum arc radius r experienced along an arc length A of the exposed rope light R exceeds a predetermined value for the particular rope light R being used, where the predetermined value of the arc radius r is at least the radius necessary to prevent kinking of sheath 200.
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While the invention has been described with reference to several embodiments thereof, the invention is more broadly defined and limited only by the recitations in the claims appended hereto and their legal equivalents.